   Chapter 4.CR, Problem 4CR ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

#### Solutions

Chapter
Section ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
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# Review ExercisesState whether the statements in Review Exercises 1 to 12 are always true (A), sometimes true (S), or never true (N). The diagonals of a parallelogram are perpendicular.

To determine

To Check:

Whether the provided statement is always true (A), sometimes true (S) or never true (N).

Explanation

Definition:

A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel.

Interpretation:

It is clear from the definition that a parallelogram is a quadrilateral in which both pairs of opposite sides are parallel.

Therefore, the diagonals of a parallelogram are perpendicular only if it’s all sides are congruent not just the opposite pairs...

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